If the combined length of the two sides of a right -angled
triangle is 40 cm, find the
largest possible area of the
triangle

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

Can't gugys answer the ratio question. this is urgent the plans of a building is drawn toward scale of 1: 1000. kfc the foyer on the plans measures 62mm by 54mm, how large is the foyer in real life?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.